---
id: CVE-2026-15537
title: >-
  A security flaw has been discovered in SourceCodester Online Book Store System
  1.0
summary: >-
  A security flaw has been discovered in SourceCodester Online Book Store System
  1.0. This vulnerability affects unknown code of the file admin/login.php. The
  manipulation of the argument Username results in sql injection. The attack can
  b…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-74
  - CWE-89
published: '2026-07-13'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15537'
references:
  - url: >-
      https://medium.com/@gauravkumar67482/sql-injection-leading-to-authentication-bypass-43b773da1967
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15537'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/855010'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377887'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377887/cti'
    label: cna@vuldb.com
  - url: 'https://www.sourcecodester.com/'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-13T07:25:22.901Z'
epss: 0.00431
epssPercentile: 0.3691
---

## Overview

A security flaw has been discovered in SourceCodester Online Book Store System 1.0. This vulnerability affects unknown code of the file admin/login.php. The manipulation of the argument Username results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.